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Shock Impact Indicator for Electronic Packaging

Publishing Venue

IBM

Abstract

In some cases it is important to find out whether a particular product in shipment was subjected to a mechanical shock above a specific limit. Here, a simple and inexpensive method of detecting a mechanical shock above a certain level of magnitude is introduced.

Country

Undisclosed

Language

English (United States)

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Shock Impact Indicator for Electronic Packaging

Critical components normally have a shock magnitude fragility limit, beyond that limit,
the reliability of the components are questionable. In a typical box as shown in the
following figure:

Cushion Foam

Shock Indicator

Foam

Box - package Critical part

When the packaged product is subjected to a shock level, the foam deforms. The
amount of foam deformation or deflection can be calculated and depend on the type of
the foam. Knowing the foam deformation, a relatively soft, breakable material can be
inserted inside the foam. When the package box is subjected to a shock level higher
than the limit, the compression of the foam will break the breakable materials such as
crayon, or chalk or other material inserted inside the foam. These materials act as a
SHOCK FUSE. These shock indicators will be installed in all six faces to capture shock
pulse in any of the six direction shock. Unlike the current shock indicator or shock
recorder in the market. This simple cost effective shock indicator can be inserted
inside the foam and can be made hidden from the mover or the package handler.